Aq_excit_2_8_janev Function

  1. atomic_tables.f90
  2. atomic_tables
  3. Aq_excit_2_8_janev

public function Aq_excit_2_8_janev(eb, q) result(sigma)

Calculates the excitation cross section for a neutral Hydrogen atom transitioning from the state to the state due to a collision an ion with charge q at energy eb

Equation

References

Arguments

TypeIntentOptionalAttributesName
real(kind=Float64), intent(in) :: eb

Collision energy [keV]
integer, intent(in) :: q

Ion charge

Return Value real(kind=Float64)

Cross Section []


Calls

proc~~aq_excit_2_8_janev~~CallsGraph proc~aq_excit_2_8_janev Aq_excit_2_8_janev proc~aq_excit_2_5_janev Aq_excit_2_5_janev proc~aq_excit_2_8_janev->proc~aq_excit_2_5_janev

Called by

proc~~aq_excit_2_8_janev~~CalledByGraph proc~aq_excit_2_8_janev Aq_excit_2_8_janev proc~aq_excit_2_janev Aq_excit_2_janev proc~aq_excit_2_janev->proc~aq_excit_2_8_janev proc~aq_excit_n Aq_excit_n proc~aq_excit_n->proc~aq_excit_2_janev proc~aq_excit_n_m Aq_excit_n_m proc~aq_excit_n_m->proc~aq_excit_n proc~aq_excit Aq_excit proc~aq_excit->proc~aq_excit_n proc~write_bb_h_aq write_bb_H_Aq proc~write_bb_h_aq->proc~aq_excit program~generate_tables generate_tables program~generate_tables->proc~write_bb_h_aq

Contents

Source Code

Aq_excit_2_8_janev

Source Code

function Aq_excit_2_8_janev(eb, q) result(sigma)
    !+Calculates the excitation cross section for a neutral Hydrogen atom transitioning from
    !+the \(n=2\) state to the \(m=8\) state due to a collision an ion with charge `q` at energy `eb`
    !+
    !+###Equation
    !+$$ A^{q+} + H(2) \rightarrow A^{q+} + H(8), q \gt 3 $$
    !+
    !+###References
    !+* Page 140 in Ref. 5 [[atomic_tables(module)]]
    !+
    real(Float64), intent(in) :: eb
        !+ Collision energy [keV]
    integer, intent(in)       :: q
        !+ Ion charge
    real(Float64)             :: sigma
        !+ Cross Section [\(cm^2\)]

    real(Float64), parameter :: A = 0.1465d0

    real(Float64) :: hi

    hi = 2.0**(0.397*(1.0 - sqrt(2.0/q)))

    sigma = A*hi*Aq_excit_2_5_janev(eb, q)

end function Aq_excit_2_8_janev